The 3' Splice Site of Influenza A Segment 7 mRNA Can Exist in Two Conformations: A Pseudoknot and a Hairpin Moss, Walter N. ; Dela-Moss, Lumbini I. ; Kierzek, Elzbieta ; Kierzek, Ryszard ; Priore, Salvatore F. ; Turner, Douglas H. Abstract Publication: PLoS ONE Pub Date: June 2012 DOI: 10.1371/journal.pone.0038323 Bibcode: 2012PLoSO...738323M